Are you sure about that? I heard this on a movie. A stripper had just quit and her boss commented to someone else: what a shame, she was morbidly ****. And there was no reference to zombies.
In the context of a stripper quitting, the meaning would depend on a number of things: what did she look like, why did she quit, what was her relationship with her boss, was he upset about her quitting, who was the boss saying this to, etc. Without further context, it seems like the quitting was like a slap in the face to the boss, and so he says this questionable thing about her, admitting to